A kernel data leak due to an out-of-bound read was found in the Linux kernel in inet_diag_msg_sctp{,l}addr_fill() and sctp_get_sctp_info() functions present since version 4.7-rc1 through version 4.13. A data leak happens when these functions fill in sockaddr data structures used to export socket's diagnostic information. As a result, up to 100 bytes of the slab data could be leaked to a userspace.
The product reads data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://marc.info/?l=linux-netdev&m=150348777122761&w=2 | mailing list third party advisory patch |
| https://access.redhat.com/errata/RHSA-2017:2918 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2017:2931 | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/100466 | vdb entry third party advisory |
| http://seclists.org/oss-sec/2017/q3/338 | third party advisory mailing list |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7558 | issue tracking third party advisory |
| http://www.securitytracker.com/id/1039221 | vdb entry third party advisory |
| https://www.debian.org/security/2017/dsa-3981 | third party advisory vendor advisory |
| https://access.redhat.com/errata/RHSA-2017:2930 | third party advisory vendor advisory |